Sleigh-shoe



(No Model.)

H. A. MORRELL.

SLEIGH SHOE.

No. 302,762. Patented July 29, 1884.

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iilnirnn rates ATET Wlmr HENRY A. MORRELL, OF PITTSFIELD, MAINE.

SLEIGH SHOE.

EaPECIPICATION forming part of Letters Patent No. 302,762, dated July29, 1884.

Application filed March 19, 1884 (No model.)

jects being to prevent the sled from sliding laterally on roads slopingsidewise, and to en able the sled to run with less friction, and thusdraw easier, as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in

which similar letters of reference indicate corresponding parts in allthe figures.

Figure l is a perspective view of a short section of a sled-shoe havinga couple of ridges along the bottom side, as I propose for wide shoes.Figs. 2, 3, and i are cross-sections of different shoes, showingmodifications of the ridges.

Sleds having flat shoes slide about from side to side of the road,according as the road-bed slopes to one side or the other, as mostcountry-roads do, owing to being higher in the middle, so that the draftis much harder, and the strain on the sleds is sometimes very se vere,frequently causing damage to them, and often disarranging the load orcausing it to be thrown off altogether or turned over.

, I have found by the practical use of shoes properly ridged withlongitudinal elevations along the bottom that such sliding about isalways prevented on roads with sloping sides, and I also find that theridges make the sled draw much easier on level roads, and especiallywhen from rains and warm sunshine the surface of the roads have melted,leaving a coating of dung, chips, &c., over the icy surface, in whichcase the bearing of the ridges on the road is so narrow that the draftis thereby very much lessened, and also that the form of the ridgescrushes the dirty impediments each way, so that the ridges on the shoesrun on the clear ice, the road being so hard that the flat surface ofthe shoe is elevated above, and does not touch the dirt, still furtherde creasing the draft. I make the shoes of the ordinary strap iron orsteel, (1, and form one 01' more ridges, c, in them along the bottom bybending down and leaving grooves Den the upper side, making the ridgesoval or any other approved form in cross-section, and more or less wideand elevated, according to the circumstances of the case. If it ispreferred to use thicker cast-metal shoes,the ridges may be made in thecasting of the shoes, with or without the grooves on the upper side. Thegrooves may be rolled in the thin shoes when the ridges are raised onthe bottom of the shoes, and the bottom of the runner may,

if desirable, be correspondingly ridged, to receive the grooves when theshoes are fitted on, which willv afford more substantial holding of therunners. These ridges and grooves make the shoes much stronger foragiven thickness, and they will wear much thinner without breaking. i

I am aware that a curved sled-runner shoe has been provided with aconcave upper face, and with a central longitudinal projecting rib withinclined surfaces on either side of said rib, and also that the curvedguiding-runner of a sled has been provided with longitudinal grooves onits under face, and I do not desire to claim such constructions as of myinvention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

As a new article of manufacture, a sled-runner shoe provided withlongitudinal grooves 12 b on its upper side, the convex sides of thegrooves forming the ridges c c on the under side of the shoe, ilatspaces being left on either side of said grooves and ridges,substantially as and for the purpose set forth.

HENRY A. MORRELL.

Witnesses:

ALVAH. H. Conroimi, 'Lns'rnn ()oMFoR'rH.

